No mention of compensation for the higher B+ due to (1) higher ac line voltage today, (2) removal of the 5AR4 rectifier heater load, and (2) the fact that he removed the valve rectifier and replaced it with SS rectifiers which have lower voltage drop.

I've not been a fan of Sprague Atom capacitors. The quality just hasn't been there in the past 20 years, but that is personal preference. In the 70s and 80s I would have recommended them.

Removing that rectifier tube function but leaving the heater connected was a master stroke of tackiness.

If you study the picture of the wiring very closely, it lools to me like the rectifier tube is still connected (both plates & filament) and the SS diodes are in parallel with the tube. You can just see the blue wires on pins 4 & 6. Make your own decisions about the quality of that type of work.

__________________"The further a society drifts from the truth, the more it will hate those who speak it" ~George Orwell